系统定位

#import
"ViewController.h"

#import
<CoreLocation/CoreLocation.h>

@interface
ViewController
()<CLLocationManagerDelegate>

@property
(nonatomic
,retain)
CLLocationManager
*manger;

@end

@implementation
ViewController

- (void)viewDidLoad {

    [super
viewDidLoad];

   
// Do any additional setup after loading the view, typically from a nib.

   
/**

    
定位

    

     - returns:

     */

   

   
self.manger
= [[CLLocationManager
alloc]
init];

   
self.manger.delegate
=
self;

   
//距离刷新

   
self.manger.distanceFilter
=
10;

   
//定位精度

   
self.manger.desiredAccuracy
=
kCLLocationAccuracyBestForNavigation;

   
//开始定位

    [self.manger
startUpdatingLocation];

   
//设置什么时候开始定位

   
//程序只要运行就会定位

    [self.manger
requestAlwaysAuthorization];

   
//程序运行就会定位

    [self.manger
requestWhenInUseAuthorization];

   
//计算经纬度之间的距离

    [self
countdistance];

   

   

   

   

   

}

-(void)countdistance{

   
CLLocation *location = [[CLLocation
alloc]
initWithLatitude:23.3
longitude:113.33];

   
CLLocation *locationEnd = [[CLLocation
alloc]
initWithLatitude:40.60
longitude:117.78];

   
//计算距离调用方法

   
CLLocationDistance distance  = [location
distanceFromLocation:locationEnd];

   
NSLog(@"distance =======  %f",distance);

   

   

   

   

   

}

-(void)locationManager:(CLLocationManager
*)manager didUpdateLocations:(NSArray<CLLocation
*> *)locations{

   

   
//获取用户位置的对象

   
CLLocation *location = [locations
lastObject];

   
CLLocationCoordinate2D coordinate = location.coordinate;

   
NSLog(@"经度:
%f,
纬度: %f",coordinate.latitude,coordinate.longitude);

   
//停止定位

    [self.manger
stopUpdatingLocation];

   

}

- (void)didReceiveMemoryWarning {

    [super
didReceiveMemoryWarning];

   
// Dispose of any resources that can be recreated.

}

@end